Both Maplewood and South Orange offer composted soil at their respective dumps (recycling centers) especially in the Spring. Check out your local dump.
I didn't know that they still delivered, they cancelled that service a while back. I have used it but you will find some weird things in it, and yes, you will get some odd things growing. It is good for fill though. Tom, how much did delivery cost? Seriously thinking about having some delivered to fill in the swamp in my back 40.
Hucklebuck